[turc1656]

I think the solution I use personally would also serve your purpose. I use KeeWeb (app.keeweb.info). It's a web app that caches in your browser and only runs locally. It also has a desktop version for Windows as well. I keep the web app up on my Android Chrome all the time since there's no phone specific app and it works beautifully.

You can store the database (encrypted of course) in a Dropbox account that it can connect to. The desktop version can also periodically store backups locally on any device you want. If you treat the Dropbox as the centralized master, every one of your employees can simply use either the Windows desktop app or just keep a browser tab open with it (like I do at work). Any changes anyone makes will instantly be reflected across all instances.

I've never tried using for more than my 3 devices, but I don't see why it wouldn't work seamlessly.